Gumming-machine.



PATENTED JUNE l9,` 1906.

I E.. A. CLAUS.

GUMMING MACHINE.

APPLICATION FILED 00T.7,1905.

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PATENTED JUNE 19, 1906.

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IE. A. CLAUS.

GUMMING MACHINE.

APPLIQATION FILED 00T. 7I 1905.

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' PATENTBDJUNB 19, 1906.

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` i No. 323,714.

UNITED sTATEs PATENT OFFICE.

- `EMIL A. CLAUS, OF HARTFORD, CONNECTICUT. x Dyeuwnvnlaca-lirlAol-nNE. y

vSpecification of Letters Patent.

Patented lmne 19, 190e; v

Application iile October 7, 1905. Serial No. 281.746.

To all whom it concern:

Beit known that EMIL A. CLAUs, a citizen of the United States, and a resident of yHartford, inthe county of Hartford and State ,of Connecticut, have invented certain new and useful .Improvements in Gumming- Machines, of which the following is a full,

. clear, `and exact specication.

This invention relates to gumming mechanism, and more especially tomachines for depositing 'afilm of gum or other adhesive On blanks-such as envelops, wrappers, and

l similar articles; and-it has for one of its objects the provision of a device whereby the successively-fed blanks are subjected to the g action of the gum-depositing means repeatedly In'order to secure a complete and uni- My invention has, furthermore, for its ob-- ject the provision of means whereby the gum-depositing device isbrought into contact with the gum-supplying drum fora considerable portion of the peripheral surface thereof to insure an ample supply of gum for the depositing device.

My invention has, furthermore, for its object the provision of a revoluble gum-depositing device having its path of travel around entire machine compact. A. further object of my invention resides in the particular construction and organization of the several operative elements, as will be hereinafter described, and ed out 'in the claims.

In the-accompanying drawings, in which similar characters denote similar parts, Figure 1 is a top view of a gumming-machine embodying my invention. Fig. 2 is a front view thereof. Fig. 3 shows a central longitudinal section of the machine. Fig. 4 represents an `end view thereof looking from the right of Fig. 2. Figs. 5, 6, and 7 are vertical cross-sections taken on lines 5 5, 6 6, and 7 7, respectively, indicated in Fig. n

Briefly stated, my improved machine comprises aconveyer upon which properly-out blanks are deposited in .such a manner ask to tion around a centrally-disposed cessively cut from a web-roll, this mechanthe gum-supply boX, thereby rendering the particularly pointoverlap each other for a distance which is equal tothe surface to be gummed, so that, as a matter of fact, each blank serves as a gage and as a means to protect the preceding blank against beingsupplied with gumformore than the required surface. 'The conveyer carries the blanks beneath a frictionally-operated retaining-roller, whereby the blanks are-held against displacement during the gumming operation, which is effected by a composition roller receiving its gum-supply from a um-boX and intervening mechani m adapte for varying the thickness of the gum film to be taken up by the gumming-roller proper. This roller is mounted for'revolugumsomewhat in accordance with the sun-andplanet system, and the gum-box `holder is so constructed that access may be had to the gum-boX-as, for instance, for refillingwithout the necessity of stopping the machine or any liability of interference with the revolvingfparts thereof.

Referring to the drawings, 10 denotes a suitable bed having near theA center thereof a table 11, which serves as a support for a conveyer C, upon which the blanks to` be gummed are placed so as to overlap each other, as seen inFig. 1, thus leaving a certain surface exposed to receive a deposit of gum. It may be stated at this time that in the operation 'of the machine the conveyer C has an intermittently-advancing movement imparted to it from an element of a blank-cutting machine, whereby the several blanks are sucveyer are carriedbeneath a friction-roller 12,

journaled in spring-pressedbearings 13 and holding the yblanks in iirm contact with the surface of the conveyer, so as to prevent them from beingpulled forward by `the acf tion of the gummmg device.

Secured on the bed 10 are a pair of supports 14, on which the several operative elements of the gumming mechanism are mounted. The hubs 14 of the support 14 are bored out to receivethe cylindrical ends Ioo 15 15? of a platen 16, which extends across land above the table 11 and supports a gumboX G, comprisin a gum compartment orreservoir 20, in w ch a' ductor-roller 2l is mounted for rotation. This roller is provided with trunnions 21, journaled'in stationary bushings 22, which are tightly iitted IIO into blocks 23, secured on the bottom plate 24 of the gum-box G.

Near its rear wall the gum-box is provided with ears 25 26, adapted to receive arms 27 28, pivoted at 29 30, respectively, and supporting at their upper ends a gum-transfer roller 35, which in the present instance comprises a cylindrical shell 35', firmly secured to a pair of heads 35, the trunnion of one of which carries a gear 36 in engagement with a gear 37, secured on the ductor-roll 21. Vhen now the transfer-roller 35 is rotated, as will be hereinafter described, its peripheral speed is greater than that of the ductor-roll 21 by virtue of the nearly-equal sizes of the gears 36 and 37 and the difference in the diameters of the said rollers, so that thegum is practically pulled from the duetor in the form of a thin film, the thickness of which can furthermore be regulated by varying the distance between said rollers-as, for. instance, by

:means of thumb-nuts 40 (see Fig. 1) engaging tailpieces 41, constituting parts of the arms 27 28, above referred to.

From the foregoing it will be understood that the more the thumb-nuts 40are moved inward the higher the position of the transfer-roller will be, and consequently a thicker layer of gum is permitted to pass between the rollers 21 and 35. Furthermore, in view of cylindrical hubs 15 15 of the platen 16 I am enabled to position the latter in the hubs 14 so as to bring the gum-box to a level no matter what the position of the machine as a whole may be,'at least within certain limits.

Mounted for rotation on the cylindrical hubs 15 are sleeves 45 46, which carry gears 47 in engagement with gears 48, secured upon a shaft 49 which is journaled in bearings 50, constituting parts of the supports 14, above referred to, and rotative movement may be imparted to said shaft by'a sprocket 51, operated by a chain from any convenient source. (Not shown.) Hence it is evident that both sleeves 45 46 are operated simultaneously and in unison-a fact which I take advantage of in actuating both ends of the gum-depositing device, and thus maintaining the latter in axial parallelism with the transfer-roller 35, which is also operated from the hub 15, having gear-teeth 51 in enga ement with a pinion 52, which is journa ed on a stud 53, held in one of the ears above mentioned. The pinion 52 is of sufficient length to engage a similar pinion 54, pivoted on a stud 55, (see Fig. 6,) which is eld in the same ear 26 and in mesh with a gear 56 on the trunnion of the transfer-roll head 35, the train just described serving to rotate the rollers 35 and 21 in a vpositive manner and at a predetermined speed ratio from the sleeve 15, as will be readily understood.

The gum-depositing device consists in its preferred form substantially of a roller 60, made of what is generally known as composition and having a planetary movement around the gum-box. In order to carry this gumming-roller into a con'iparatively extensive peripheral contact with the gumtrans fer roller 35 for the purpose of covering substantially the entire surface of the gummingroller, the latter is guided ina certain path as prescribed by a pair of eam-grooves 61, formed in the supports 14. The roller 6() is provided with a shaft 62, journaled at its ends in boxes 63, which are provided with stems 64, adapted for radial adjustment in yokes 65, which are mounted for revolution around theaxis of the sleeves 15 15 the organizationibeing preferably as follows: Keyed to the sleeves 15 15 are a pair of carriers 66, adapted to receive movable guide-rods 67, secured in the yokes 65, so that as the sleeves vare rotated the yokes will move radially relatively to the axis of said sleeves and as controlled by the cam-grooves 61, -which govern. the path of cam-rollers 68, journaled on studs 69, secured in said yokes'65. (See Fig. 3.)

Inasmuch as the radial movement of the yokes 65 is positively controlled by the cam- ,grooves 61,-I deem it expedient to journal the roller-shaft 62 in the bearings 63, which are mounted for radial adjustment relative to the axis of revolution of the yokes, or, in other words, to provide means for varying the contact-pressure between the roller-sur face and the blanks and also to compensate for the wear on said roller.

By referring to Figs. 5 and 7 it will be seen that the upper `portion of the cam-groove 61 is formed substantially concentric with the axis of transfer-roller 35, so that the soft composition roller will be carried into contact with the surface of the latter for an angular distance of nearly ninety degrees,whicl1 covers in reality more than the circumference of the roller 60. The yoke 65 revolves in the direction of arrow c, and after the roller 60 has obtained its supply of gum said yoke will be caused to move im fard to avoid the driving-shaft 49, then outward again and in a horizontal direction thus carrying the gumming-roller into contact with the blanks on the conveyer @whereupon the cam-groove will again direct the umming-roller into contact with the trans er-roller 35 to obtain a fresh gum-supply.

The horizontal travel of the gummingroller extends in practice over four exposed blank edges, each being about threefourths of an inch in width, and inasmuch as the stepby-step movement of the conveyer is in conformity therewith it follows that each blank will receive four gummings during its passage through the gum-depositing zone, thus insuring perfect and uniformly-even work. It is of course manifest that the number of these repetitional gummings may be varied and, furthermore, that this number depends upon the length of overlap of the successive blanks,

lOO

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IIS

provided the'cam-grooveY oij the machine is' not changed. f

`In vievir fof the fact that a machine of the type described Will necessarily use a large amount of gum I deem it expedient to lprovide facilities for re lenishing the gum-box, When required, an hence the cylindrical hubs 15 15 are made tubular, sothat a pipedevice repeatedly into contact with said sup-V ply device and a blank on the conveyer, al-

ternately, to lay a plurality of gum iilms on the same portion of the blank-surface.

2. The combination, with a blank-conveyer, a gumming mechanism comprising a gumming device, and means foractuating the same for'layin a plurality of gum iilms on each one of the lanks of a blank-retaining device cooperative with the conveyer and for holding the blanks thereon during the gumming operation.

3. The' combination, with ay blank-conveyer, a gumming Imechanism comprising a gumming-roller, and means for guiding the` same in parallelism with said conveyer and into contact With'the blanks thereon, of a blank-retai'ni'n device coperativefwith the conveyer and or holding the blanksthereon during the gumming operation.

4. The combination, With a blank-conveyer, and a gumm'ng mechanism comprising a gum-supplyin device; of a gummingroller, means or ing said gumming-roller in parallelism WitIi the conveyer and into contact With the blanks on the conveyer, and a device for holding the blanks during the guming operation. n

5.. The combination, with a blank-conveyer, and a gumming mechanism comprising a gumming-roller; of means for bringing said roller into 'contact With the blanks on the conveyer, and a friction-roller coperativev With the conveyer and for holdingthe blanks thereon during the gumming operation. f.

6. The combination, With a blank-conveyer, and a gumming mechanismcomprising a gum-reservoir, a gum-supplying roller coperative therewith 5 and a gummingroller, of a cam for bringin said gummingroller intocontact With' sai supplying-roller and the blanks onthe conveyer, alternately.

71 The combination with a blank-conveyer, and a gumming mechanism comprising a gum-reservoir, a gum-supplying roller, and a gumming-roller; of a cam for uiding said gumming-roller in parallelism with the conveyer, and for repeatedly gumming 'each blank thereon.

8. The combination with a blank-conveyer, a gumming mechanisml comprising a gum-reservoir, and a gum-supplying device,

` and a gummmg-roller 5 of a pair of stationary cams for guiding said gumming-roller in parallelism with the conveyer, andl means for actuating said roller.

9. The combination with a blankconveyer,- a gumming mechanism comprising a gum-reservoir and a gum-supplying device, and a gumming-roller of a pair of stationary cams for guiding said gumming-roller in parallelism With the conveyer, and means for .actuating said roller, and a device for holding the blanks on the conveyer during the gumf ming operation.

10. In a gumming-machine, the combination, With a gum-reservoir, a gum-supplying device, and a gumming-roller; of means for brin ing said roller into contact With said suppy device and to lay a film of gum substantially on the entire surface of said gumming-roller.

11. In a gumming-machine, the combinav tion, with a gum-reservoir, a gum-supplying device, and a gumming-roll; of a 'cam Jfor bringing said roller into contact With said 'supply device and to lay` a film of gum substantially on the entire surface of said gumming-roller.

12,..y In a gumming-machine, the combinal i tion, With a gum-reservoir, and a supplyroller; of a yoke mounted for krevolution IOO around the reservoir, a gumming-roll carried by said yoke, and means for controlling the movement of the yoke and for bringing said roll into contact With the supply-roller.

13. In a gumming-machine, the combination, With a gum-reservoir, and a supplyroller; of a yoke mounted for revolution around the reservoir, a gumming-roll carried by'said yoke, and a cam for controlling the movement-oi1 the yoke and for brin ing said roll into contact With the supply-rol er.

14. In a gumming-machine, the combina- IIO tion, With a gum-reservoir, and a supplyroller of a pair of yokes mounted for simultaneous revolution around said reservoir, a gumming-roll carried by said yokes, a pair of stationary cams for controlling the movement of the yokes, and means Jfor positioning the gumming-roll on said yokes.

' 15. In a gumming-machine, the combination, With a gum-reservoir, and a gum-supplying roller, of a pair of yokes mounted for revolution around said reservoir, a gummin roll carried by said yoke, means for contro ling the radial movement of said yokes, and means for positioning the gumming-roller on the yokes.Y

16. In a gumming-machine, the combination, With a gum-reservoir, a ductor-roll, and

said transfer-roller relatively to the ductorroll, and means for actuating the transferroller at a greater circumferential speed than that of the ductor-roll.

17. In a gumming-machne, the combination, With a pair of supports, and gum-reservoir mounted for rotation-therein of a gumsupplying device, a gumming-roll mounted for revolution around the reservoir, and means for controlling the movement of said roll toward and away from the supply device.

18. In a {Drumming-machine, the combination7 with a gum-reservoir, a ductor-roll rotatable therein, a transfer-roller cooperative with the ductor-roll, and means for positioning said transfer-roller relativelyT to the (luctor-roll of a pair of yokes mounted for revolution around said reservoir, a gumming-roll carried by said yokes, and means for positioning the gumming-roll on the yoke.

EMIL A. CLAUS. l/Vitnesses 1 ELLA CLAUS, CHAs. F. SonMELz. 

